DE69018809D1 - Servo zur positionierung eines mehrspur-magnetkopfes in einem bidirektionalen magnetbandsystem. - Google Patents

Servo zur positionierung eines mehrspur-magnetkopfes in einem bidirektionalen magnetbandsystem.

Info

Publication number
DE69018809D1
DE69018809D1 DE69018809T DE69018809T DE69018809D1 DE 69018809 D1 DE69018809 D1 DE 69018809D1 DE 69018809 T DE69018809 T DE 69018809T DE 69018809 T DE69018809 T DE 69018809T DE 69018809 D1 DE69018809 D1 DE 69018809D1
Authority
DE
Germany
Prior art keywords
servo
positioning
magnetic tape
tape system
magnet head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69018809T
Other languages
English (en)
Other versions
DE69018809T2 (de
Inventor
Ezra Alcudia
Robert Whyte
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of DE69018809D1 publication Critical patent/DE69018809D1/de
Application granted granted Critical
Publication of DE69018809T2 publication Critical patent/DE69018809T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5504—Track change, selection or acquisition by displacement of the head across tape tracks
    • G11B5/5508—Control circuits therefor
DE69018809T 1989-09-19 1990-09-18 Servo zur positionierung eines mehrspur-magnetkopfes in einem bidirektionalen magnetbandsystem. Expired - Fee Related DE69018809T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/409,542 US5121270A (en) 1989-09-19 1989-09-19 Multitransducer head positioning servo for use in a bi-directional magnetic tape system
PCT/US1990/005259 WO1991004555A1 (en) 1989-09-19 1990-09-18 Multitransducer head positioning servo for use in a bi-directional magnetic tape system

Publications (2)

Publication Number Publication Date
DE69018809D1 true DE69018809D1 (de) 1995-05-24
DE69018809T2 DE69018809T2 (de) 1995-11-30

Family

ID=23620948

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69018809T Expired - Fee Related DE69018809T2 (de) 1989-09-19 1990-09-18 Servo zur positionierung eines mehrspur-magnetkopfes in einem bidirektionalen magnetbandsystem.

Country Status (5)

Country Link
US (1) US5121270A (de)
EP (1) EP0444191B1 (de)
JP (1) JPH04501931A (de)
DE (1) DE69018809T2 (de)
WO (1) WO1991004555A1 (de)

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JPH05182131A (ja) * 1991-06-07 1993-07-23 Minnesota Mining & Mfg Co <3M> マルチチャンネルヘッドアセンブリと書き込み装置と磁気記録媒体
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US5371638A (en) * 1992-06-24 1994-12-06 Digital Equipment Corporation Servo method and apparatus for very high track density magnetic recording by adjusting head position based on servo information read from adjacent track
US5949604A (en) * 1992-06-24 1999-09-07 Quantum Corporation Method of writing and reading servo on tracks having a longitudinal gap
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US5574602A (en) * 1993-06-14 1996-11-12 International Business Machines Corporation Processing servo signals concurrently read from plural spaced-apart servo areas for a magnetic tape having serpentine data track scanning
US5432652A (en) * 1993-06-14 1995-07-11 International Business Machines Corporation Servo and data format for magnetic tape having plural spaced-apart servo areas interleaved with data track areas having serpentine track scanning using any one of a plurality of number of concurrently accessed tracks
US6700732B1 (en) * 1993-07-30 2004-03-02 Washington University Method and apparatus for a vernier magnetic recording head
US5448430A (en) * 1993-08-05 1995-09-05 International Business Machines Corporation Track following servo demodulation
DE69434454T2 (de) * 1993-12-15 2006-03-30 Seagate Removable Storage Solutions Llc. Schwingspulengesteuerter Positionierer für Gross-und Feinpositionierung eines Magnetkopfes in einem Mehrfachspurbandgerät
US5521774A (en) * 1994-03-18 1996-05-28 Cartesian Data, Inc. Memory storage module for storing and accessing
US5452150A (en) * 1994-06-27 1995-09-19 Minnesota Mining And Manufacturing Company Data cartridge with magnetic tape markers
US5602703A (en) * 1994-12-27 1997-02-11 Seagate Technology, Inc. Recording head for recording track-centering servo signals on a multi-track recording medium
JPH10501091A (ja) * 1995-03-24 1998-01-27 フィリップス エレクトロニクス ネムローゼ フェンノートシャップ 磁気ヘッドと磁気ヘッドの位置を制御するシステム
EP0756196A3 (de) * 1995-07-28 2003-02-19 Eastman Kodak Company Magnetkopfsystem zur verschachtelten Aufzeichnung und Wiedergabe von Informationen auf Mehrfachspuren in einer Magnetschicht innerhalb des Bildbereichs von photographischen Filmstreifen
JPH11500255A (ja) * 1995-12-07 1999-01-06 フィリップス エレクトロニクス ネムローゼ フェンノートシャップ 多数のトラックに対するヘッドの位置決め
EP0849735B1 (de) * 1996-12-20 2003-06-18 Deutsche Thomson-Brandt Gmbh Kombinierte longitudinale und transversale Spurnachführung
US5926339A (en) * 1997-02-21 1999-07-20 Storage Technology Corporation Method for servo track identification
US5946156A (en) * 1997-03-04 1999-08-31 Imation Corp. Tape servo system and methods, write/read heads, and servo track configurations regarding same
US6078463A (en) * 1997-10-24 2000-06-20 Tandberg Data Asa Method and system for generating a position error signal from recorded servo data tracks containing information represented by longitudinally spaced, magnetic transitions
US6349356B2 (en) 1997-12-10 2002-02-19 International Business Machines Corporation Host-available device block map for optimized file retrieval from serpentine tape drives
US6456460B1 (en) 1998-03-20 2002-09-24 Seagate Technology Llc Track width definition by patterning of shared pole for integrated thin film/magnetoresistive head
EP1075693A4 (de) * 1998-03-30 2002-06-12 Storage Technology Corp Servospur-erkennungsverfahren
EP1271477B1 (de) * 1998-03-30 2006-03-01 Imation Corp. Band-Servomuster mit verbesserten Synchronisationseigenschaften
JP4022373B2 (ja) * 1998-03-30 2007-12-19 イメイション・コーポレイション 長手方向位置情報が書き込まれたテープサーボパターン
US6172833B1 (en) 1998-08-05 2001-01-09 International Business Machines Corporation Retrieval of serpentine pattern data using a memory device of a tape cartridge
US6330123B1 (en) 1999-05-28 2001-12-11 Imation Corp. Head assembly having a single pass servo writer
US6721126B1 (en) 2000-08-16 2004-04-13 International Business Machines Corporation Position identification for a coarse actuator portion of a compound actuator
US6661600B1 (en) 2000-11-02 2003-12-09 International Business Machines Corporation Calibration of servo index positions of a magnetic tape employing second order curve fitting
JP4644356B2 (ja) * 2000-11-10 2011-03-02 株式会社日立グローバルストレージテクノロジーズ 磁気ディスク装置及び、磁気記録再生装置のサーボライト方式
US6873487B2 (en) * 2001-11-26 2005-03-29 Imation Corp. Hybrid servopositioning systems
US6798608B2 (en) 2002-01-18 2004-09-28 International Business Machines Corporation Active detection and acquisition of a servo track subject to lateral motion
US6970312B2 (en) * 2002-12-23 2005-11-29 Imation Corp. Full amplitude time-based servopositioning signals
US6937413B2 (en) * 2003-08-08 2005-08-30 International Business Machines Corporation Tape servo information with superimposed data information providing servo band identification
US7002763B2 (en) * 2003-08-08 2006-02-21 International Business Machines Corporation Identification of laterally positioned servo bands employing differentiating characteristics of servo patterns
US7136255B2 (en) * 2003-10-20 2006-11-14 Quantum Corporation Servo methods and systems using masked medium edge position sensors
US7116514B2 (en) * 2003-10-20 2006-10-03 Quantum Corporation Methods and systems for magnetic recording
US7149050B2 (en) * 2003-10-20 2006-12-12 Quantum Corporation Diffractive position sensors and control systems
US7139152B2 (en) * 2003-10-20 2006-11-21 Quantum Corporation Servo methods and systems using existing data structures and optical masks
US7102845B2 (en) * 2003-10-20 2006-09-05 Quantum Corporation Servo methods and systems using existing data structures and medium edge position
US7085095B2 (en) * 2003-10-20 2006-08-01 Quantum Corporation Electromagnetic void-sensing probes and position control systems
US7038872B2 (en) * 2003-11-10 2006-05-02 Imation Corp. Servo patterns with inherent track ID
US7038871B2 (en) * 2003-11-10 2006-05-02 Imation Corp. Multi-band servo patterns with inherent track ID
US7142381B2 (en) * 2003-11-10 2006-11-28 Imation Corp. Servo writing devices for creating servo patterns with inherent track ID
US7184233B2 (en) * 2004-06-04 2007-02-27 Quantum Corporation Dual source tracking servo systems and associated methods
US20060103968A1 (en) * 2004-11-12 2006-05-18 Jurneke Joe K Dynamic skew compensation systems and associated methods
US7499235B2 (en) * 2005-03-18 2009-03-03 Quantum Corporation Auto-servo tape system and associated recording head
US7751148B1 (en) 2006-03-27 2010-07-06 Oracle America, Inc. Multi-level, multi-track magnetic recording head
US7656610B1 (en) 2006-03-27 2010-02-02 Storage Technology Corporation Bi-directional magnetic recording head built on a common substrate
US20080068750A1 (en) * 2006-09-19 2008-03-20 International Business Machines Corporation Planar Write Module And Hybrid Planar Write-Vertical Read Bidirectional Tape Head
US20080068752A1 (en) * 2006-09-19 2008-03-20 International Business Machines Corporation Planar Bidirectional Tape Head With Planar Read And Write Elements
US7978429B2 (en) * 2006-09-19 2011-07-12 International Business Machines Corporation Low track pitch write module and bidirectional tape head
US7826169B2 (en) * 2007-04-25 2010-11-02 Quantum Corporation Servo error detection and compensation utilizing virtual data tracking servo methods
US8825772B2 (en) * 2007-06-28 2014-09-02 Voxer Ip Llc System and method for operating a server for real-time communication of time-based media

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US4048660A (en) * 1975-12-23 1977-09-13 International Business Machines Corporation Record track following and seeking
US4400747A (en) * 1981-06-26 1983-08-23 International Business Machines Corporation Servo system for data storage apparatus
US4472750A (en) * 1981-07-02 1984-09-18 Irwin Magnetic Systems, Inc. Data record with pre-recorded transducer positioning signals, and system for utilizing same
US4409628A (en) * 1981-11-16 1983-10-11 Honeywell, Inc. Tape transport speed control using a playback data derived clock signal
US4977472A (en) * 1988-03-28 1990-12-11 Seagate Technology, Inc. Servo address system
US5008765A (en) * 1989-01-17 1991-04-16 Minnesota Mining And Manufacturing Company Method and apparatus for reading or writing on tape using a servo positioned multiple channel head

Also Published As

Publication number Publication date
EP0444191A1 (de) 1991-09-04
JPH04501931A (ja) 1992-04-02
WO1991004555A1 (en) 1991-04-04
US5121270A (en) 1992-06-09
DE69018809T2 (de) 1995-11-30
EP0444191B1 (de) 1995-04-19

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee